Yeah, so do you know how to adjust this? That would be the first place to start. Your attempt at a lower multi but same cpu speed kinda confirms this.

So, lower the ram divider, then up the FSB more and see what happens. Also, if you have the "4-4-4-12, 1T" Reapers, don't be afraid to give them 2.2v...or a bit more...just make sure they are getting good airflow for more than 2.2v!